<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
.water{
	width: 50px;
	height: 50px;
	position: relative;
}
.water .point{
	position: absolute;
	border-radius: 50%;
	animation: border 2s linear infinite;
}
.water .point2{
	-webkit-animation-delay: 0.5s;
}
.water .point3{
	-webkit-animation-delay: 1s;
}
.water .point4{
	-webkit-animation-delay: 1.5s;
}
@keyframes border{
	from {
		width: 0;
		height: 0;
		top: 50%;
		left: 50%;
		background-color: rgba(235,51,36,1);
	}
	to {
		width: 100%;
		height: 100%;
		top: 0;
		left: 0;
		background-color: rgba(235,51,36,0);
	}
}
    </style>
</head>
<body>
    <div class="water">
        <div class="point point1"></div>
    </div>
</body>
</html>